From: Masahiro Yamada Date: Thu, 6 Nov 2014 18:03:26 +0000 (+0900) Subject: replace DIV_ROUND with DIV_ROUND_CLOSEST X-Git-Tag: v2015.01-rc2~38 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=4515992fc7849c51997e3ff2d00352e36e14ebd7;p=u-boot replace DIV_ROUND with DIV_ROUND_CLOSEST The Linux-compatible macro DIV_ROUND_CLOSEST is a bit more flexible and safer than DIV_ROUND. For example, foo = DIV_ROUND_CLOSEST(x, y++) works expectedly, but foo = DIV_ROUND(x, y++) does not. (y is incremented twice.) Signed-off-by: Masahiro Yamada --- diff --git a/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c b/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c index d25019a51e..1c54ab7de3 100644 --- a/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c +++ b/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c @@ -1002,7 +1002,8 @@ static void mxs_power_set_vddx(const struct mxs_vddx_cfg *cfg, uint32_t powered_by_linreg = 0; int adjust_up, tmp; - new_brownout = DIV_ROUND(new_target - new_brownout, cfg->step_mV); + new_brownout = DIV_ROUND_CLOSEST(new_target - new_brownout, + cfg->step_mV); cur_target = readl(cfg->reg); cur_target &= cfg->trg_mask; diff --git a/arch/arm/cpu/armv7/omap-common/abb.c b/arch/arm/cpu/armv7/omap-common/abb.c index 423aeb9807..a0add6643e 100644 --- a/arch/arm/cpu/armv7/omap-common/abb.c +++ b/arch/arm/cpu/armv7/omap-common/abb.c @@ -48,9 +48,9 @@ static void abb_setup_timings(u32 setup) */ /* calculate SR2_WTCNT_VALUE */ - sys_rate = DIV_ROUND(V_OSCK, 1000000); - clk_cycles = DIV_ROUND(OMAP_ABB_CLOCK_CYCLES * 10, sys_rate); - sr2_cnt = DIV_ROUND(OMAP_ABB_SETTLING_TIME * 10, clk_cycles); + sys_rate = DIV_ROUND_CLOSEST(V_OSCK, 1000000); + clk_cycles = DIV_ROUND_CLOSEST(OMAP_ABB_CLOCK_CYCLES * 10, sys_rate); + sr2_cnt = DIV_ROUND_CLOSEST(OMAP_ABB_SETTLING_TIME * 10, clk_cycles); setbits_le32(setup, sr2_cnt << (ffs(OMAP_ABB_SETUP_SR2_WTCNT_VALUE_MASK) - 1)); diff --git a/drivers/misc/mxc_ocotp.c b/drivers/misc/mxc_ocotp.c index 3de1245699..89737af9b7 100644 --- a/drivers/misc/mxc_ocotp.c +++ b/drivers/misc/mxc_ocotp.c @@ -122,8 +122,8 @@ static void set_timing(struct ocotp_regs *regs) relax = DIV_ROUND_UP(ipg_clk * BV_TIMING_RELAX_NS, 1000000000) - 1; strobe_read = DIV_ROUND_UP(ipg_clk * BV_TIMING_STROBE_READ_NS, 1000000000) + 2 * (relax + 1) - 1; - strobe_prog = DIV_ROUND(ipg_clk * BV_TIMING_STROBE_PROG_US, 1000000) + - 2 * (relax + 1) - 1; + strobe_prog = DIV_ROUND_CLOSEST(ipg_clk * BV_TIMING_STROBE_PROG_US, + 1000000) + 2 * (relax + 1) - 1; timing = BF(strobe_read, TIMING_STROBE_READ) | BF(relax, TIMING_RELAX) | diff --git a/lib/strmhz.c b/lib/strmhz.c index f9a17727f5..5c16cc4fc7 100644 --- a/lib/strmhz.c +++ b/lib/strmhz.c @@ -11,11 +11,11 @@ char *strmhz (char *buf, unsigned long hz) long l, n; long m; - n = DIV_ROUND(hz, 1000) / 1000L; + n = DIV_ROUND_CLOSEST(hz, 1000) / 1000L; l = sprintf (buf, "%ld", n); hz -= n * 1000000L; - m = DIV_ROUND(hz, 1000L); + m = DIV_ROUND_CLOSEST(hz, 1000L); if (m != 0) sprintf (buf + l, ".%03ld", m); return (buf);